a16z
August 20, 2025

Oren Cass & Noah Smith Debate the True Impact of Tariffs

In a sharp debate, Oren Cass of American Compass and Noah Smith clash over the contentious world of tariffs, industrial policy, and what it truly takes to compete with China and revitalize American manufacturing.

1. Rethinking Free Trade with Non-Market Players

  • At the heart of the debate is a fundamental disagreement over free trade itself. Cass argues that the classic Econ 101 models of comparative advantage don’t apply when trading with a non-market economy like China, whose industrial strength comes from policy, not natural endowment. Engaging with them, he claims, doesn’t advance free markets—it wrecks them.
  • “The question is, does free trade with China advance free markets or does it distort and wreck our free market? If you attempt to be for free trade with a non-market economy, you are not actually advancing free markets... You're actually dramatically hindering them.”
  • Policy Over Endowment: Advantages in modern manufacturing (e.g., Taiwanese semiconductors) are built through strategic policy, not natural resources. Treating them the same is a critical error.
  • Goods for Assets: The US isn't trading goods for goods but rather exchanging goods for financial assets like Treasury debt—a trade Cass argues is not beneficial long-term.

2. The Tariff Tightrope: Short-Term Pain vs. Long-Term Gain

  • The discussion zeroes in on the immediate, observable effects of tariffs versus their intended long-term outcomes. Smith points to flashing red indicators—contracting PMIs, falling factory orders, and declining investment—as direct evidence of tariffs hurting manufacturers by disrupting supply chains. Cass counters that this is expected short-term pain, and the real test is a 3-to-5-year investment cycle that hasn’t had time to play out.
  • “If I'm hearing you correctly, the idea is that this is temporary... the manufacturing bust that we're seeing now is simply temporary pain for long-term gain.”
  • The Data Divide: Smith highlights that US factory activity contracted for four consecutive months post-tariffs. Cass frames this as noise, arguing the key metric to watch is capital investment, which takes years to respond.
  • The Clock is Ticking: Cass suggests a 1-2 year window to see if tariffs successfully induce a domestic investment response. If not, he would concede the strategy has failed.

3. The Alliance Alternative: Scale Up or Wall Off?

  • Smith proposes an alternative strategy rooted in Paul Krugman’s Nobel-winning work: achieve scale. He argues the US should form a free-trade bloc with allies like Europe and Japan to create a market large enough to compete with China. Imposing tariffs on these allies is counterproductive, as it prevents the scale needed to lower costs.
  • “What we need to do is find some other countries where we can say our manufacturers get scale from exporting to you and your manufacturers get scale from exporting to us... so we can compete with the Chinese because we can match them for scale.”
  • Gross vs. Net: Smith contends that the total volume of trade (gross exports) is more important for scaling industries than the trade balance (net deficit), as it expands the total market for US producers.
  • The Ally Problem: Cass pushes back, noting these same allies run significant trade surpluses with the US, pursuing an "export, export, export" model that must be rebalanced through negotiation—using tariffs as leverage.

Key Takeaways:

  • The success of tariffs is a bet on a multi-year investment cycle. The core disagreement isn't about the immediate negative data, but whether it's a temporary cost or a permanent feature. The debate will be settled not by this quarter's PMIs, but by factory construction data in 2026.
  • Strategy boils down to two paths: protection or partnership. The US can either build walls to shelter domestic industry, as Cass suggests, or team up with allies to create a market bloc with the scale to rival China, as Smith advocates.
  • Capital investment is the ultimate arbiter. Both sides agree on one thing: if tariffs don't trigger a sustained boom in domestic manufacturing investment, the policy will have failed. All eyes are on capital expenditure trends over the next 24 months.

For further insights and discussions, watch the full debate here: Link

This episode dissects the fierce debate over tariffs and industrial policy, revealing how competing economic visions could reshape critical supply chains and investment landscapes for strategic sectors like AI and crypto.

The New Conservative Economic Vision

  • Oren Cass, founder of American Compass, introduces his organization's mission to restore an economic consensus centered on family, community, and industry. He argues that for the past generation, policymakers have placed excessive faith in markets, assuming that maximizing corporate profits and efficiency would benefit everyone.
  • Cass contends this approach has failed, leading to unequal outcomes and neglecting non-market values essential for human and national flourishing.
  • His framework pairs family, community, and industry as pillars that markets do not automatically support, requiring a more interventionist policy approach.
  • "The core of our argument is that if those are things that...conservatives care about, then they have to be willing to...think about an approach to economics and markets that goes beyond just trusting that whatever comes out of the market is going to be good."

Rethinking Free Trade Theory in a Modern Economy

  • The conversation challenges the simplified models taught in introductory economics. Oren Cass argues that these models, often based on agricultural goods and natural endowments, fail to capture the complexities of modern trade, which is dominated by manufactured goods and strategic policy choices.
  • Comparative Advantage: This classical economic theory suggests countries benefit by specializing in producing goods where they have a lower opportunity cost. Cass notes that in manufacturing, this "advantage" is often created by policy, not natural resources, citing Taiwan's dominance in semiconductors as an example.
  • He highlights two critical flaws in the traditional free-trade argument:
    1. Countries can strategically build advantages in high-value industries with significant economic spillovers.
    2. The modern economy allows for trading goods for assets (like US Treasury debt), not just goods for goods, leading to massive trade deficits that may not be beneficial long-term.

The China Dilemma: Free Trade with a Non-Market Economy

  • A central theme is the failure of US policy to account for China's state-driven, non-market economy. Cass argues that engaging in free trade with China does not advance free market principles but actively distorts and harms the US market.
  • He asserts that the American policy tradition, until recently, included high tariffs, immigration restrictions, and industrial policy—tools now often associated with China.
  • Strategic Implication: For investors, this signals a fundamental shift in US economic strategy. The consensus around free trade is breaking down, creating uncertainty but also opportunities for domestically-focused industries, particularly in strategic tech sectors.

The Tariff Debate: Short-Term Pain vs. Long-Term Gain

  • Noah Smith directly challenges Oren Cass on the immediate impact of Trump's tariffs, citing negative manufacturing indicators. Cass counters that these are expected short-term disruptions necessary for a long-term industrial revival.
  • Noah points to slumping PMIs (Purchasing Managers' Indexes)—a key indicator of economic health in the manufacturing sector—and surveys showing manufacturers struggling with sourcing intermediate goods.
  • Oren argues that the goal is not just assembly but full re-industrialization, which requires incentivizing the return of intermediate supply chains. He frames the current downturn as temporary pain.
  • "You have to shift incentives. There's going to be disruption. Here's the better thing we might build toward." - Oren Cass
  • Actionable Insight: Investors should monitor leading indicators beyond immediate PMI data. Cass identifies capital investment and factory construction as the crucial metrics to watch over the next 1-3 years to validate the long-term re-industrialization thesis.

What Would Change Their Minds?

  • Oren Cass is focused on capital investment. A sustained increase in domestic investment in new sectors would signal success. He also emphasizes the need to see a rise in manufacturing productivity, which has been falling for a decade.
  • Noah Smith states that a clear boom in manufacturing investment would be an exciting, positive sign. He believes this is more likely to be driven by industrial policy (like the CHIPS Act) and free trade with allies, rather than broad tariffs.

An Alternative Strategy: Scale, Alliances, and Industrial Policy

  • Noah Smith presents his alternative vision for revitalizing US manufacturing, grounded in modern trade theory and strategic alliances.
  • He references Paul Krugman's New Trade Theory, which emphasizes the importance of scale. Manufacturing costs decrease as production volume increases. China's massive domestic market gives it an unparalleled advantage in scale.
  • Noah argues the US cannot match China's scale alone and must pool its market with allies like Europe, Japan, and South Korea. This requires free trade among allies to allow manufacturers to achieve competitive scale.
  • "We're fighting with our allies instead of pooling our resources to stand up to China." - Noah Smith
  • He advocates for targeted industrial policy, infrastructure investment, and vocational training to build domestic capacity, citing the boom in factory construction in sectors targeted by Biden's policies as evidence of its effectiveness.

Gross vs. Net: A Deeper Look at Trade Deficits

  • The debate evolves into a nuanced discussion of trade deficits. Noah Smith argues that the obsessive focus on the net balance (deficits or surpluses) is misguided.
  • He contends that the gross volume of trade is more important for achieving scale. If US exports to Germany rise by $10 billion while German exports to the US rise by $12 billion, the resulting $2 billion deficit is less important than the new $10 billion market opened to US manufacturers.
  • Oren Cass counters that this assumes trade expands total demand, which isn't supported by aggregate data. He points to US industrial output flatlining since 2007, with import growth displacing domestic production.
  • Strategic Implication: This debate highlights two different ways of measuring economic success in trade. For researchers, understanding whether policy is optimized for gross trade volume or net balance is key to predicting its impact on specific industries.

Conclusion: Competing Visions for a New Economic Era

  • The episode reveals a deep ideological clash over the future of American economic policy. The debate moves beyond simple pro- or anti-tariff stances to explore complex strategies involving industrial policy, strategic alliances, and the fundamental goal of global trade, with direct implications for the future of domestic high-tech manufacturing.

Others You May Like